These SRAM Guide RS brakes have been such a stone in my shoe!!! I sold a fatbike to a CT friend. He drove the round trip to NJ to pick up the bike. As soon as he got the bike home, he had problems with the brake. He's no bike mechanic, so he brought the bike to the LBS where (after some attemps at brake bleeds) it was discovered that it's a warranty item. Now we're in sort of a bike shop hell, where the costs are mounting: Brake Bleeds X2, calls to SRAM, no end in sight. I'm trying to find the least painful, quickest, cheapest way thru this. One possibility is to just buy a $90 Shimano brake and send it up to him, which he's willing to install himself. ughh. Wished I could just hand this bike to you, but it's not that easy.